Simple Menu is an intentionally minimal launcher widget for Plasma 5. Powered by the same powerful backend as Plasma 5's bundled launchers, its UI is similar to the fullscreen Application Dashboard, just in a small, floating window. In addition to the application grid and filtering, it supports...

The sysmon plasmoid is based on KDE standard system load plasmoids which are constrained to some chosen metrics like CPU load. In contrast, the sysmon can show any metric provided by the System Monitor data source engine.
Installation is pretty simple and straight forward:
$ git clone...

This is a Plasma applet that shows the current price of any cryptocurrency from user definable exchanges and JSON keys.
Credits to Maciej Gierej, author of several bitcoin applets that this applet is derived from:
https://github.com/MakG10/